Crescent shape can be formed by drawing filled circle drawn on top of another filled circle. Assuming the background is white color, draw the first circle with white pencolor and
Draw 60 evenly spaced out tilted circles (Turtle’s heading directions are different for these circles) as shown here: Related Project: 60 Tilted Squares
import turtle
turtle.speed(0)
turtle.up()
turtle.circle(100,270)
turtle.down()
turtle.circle(100,180)
turtle.left(90)
turtle.fd(200)
turtle.left(18)
turtle.circle(25,180)
Good!